That's 16GB of DRAM. Caches are SRAM, which has a very different set of design t... | Hacker News

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skept on Nov 11, 2020 | parent | context | favorite | on: Apple unveils M1, its first system-on-a-chip for p...

That's 16GB of DRAM. Caches are SRAM, which has a very different set of design tradeoffs. SRAM cells use more transistors so they can't be packed as tightly as DRAM.

tinus_hn on Nov 11, 2020 [–]

16gb is 500 times as much as 32mb. Cache memory is not 500 times as large as normal memory.

If 32mb would be too hard they could have easily went for 1mb.

But they didn’t and that’s a pretty good indicator it doesn’t make a lot of difference.

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